EP 3626705 B1 20210324 - ISOCYANATE PRODUCTION METHOD
Title (en)
ISOCYANATE PRODUCTION METHOD
Title (de)
VERFAHREN ZUR HERSTELLUNG VON ISOCYANAT
Title (fr)
PROCÉDÉ DE FABRICATION D'ISOCYANATE
Publication
Application
Priority
- JP 2017096766 A 20170515
- JP 2017096767 A 20170515
- JP 2017096768 A 20170515
- JP 2017096769 A 20170515
- JP 2017096770 A 20170515
- JP 2017096771 A 20170515
- JP 2017096772 A 20170515
- JP 2017096773 A 20170515
- JP 2017096774 A 20170515
- JP 2017096775 A 20170515
- JP 2017096776 A 20170515
- JP 2017096781 A 20170515
- JP 2018018830 W 20180515
Abstract (en)
[origin: EP3626705A1] An isocyanate production method according to the present invention is a method in which an isocyanate is produced by subjecting a carbamate to thermal decomposition, and includes: a step of preparing a mixture liquid containing the carbamate, an inactive solvent and a polyisocyanate compound; a step of conducting a thermal decomposition reaction of the carbamate by continuously introducing the mixture liquid into a thermal decomposition reactor; a step of collecting a low-boiling decomposition product by continuously extracting the low-boiling decomposition product in a gaseous state from the reactor, the low-boiling decomposition product having a boiling point lower than the polyisocyanate compound; and a step of collecting a high-boiling component by continuously extracting, from the reactor, a liquid phase component which is not collected in a gaseous state at the step of collecting the low-boiling decomposition product.
IPC 8 full level
C07C 263/04 (2006.01); C07C 265/14 (2006.01); C07C 319/20 (2006.01); C07D 209/20 (2006.01); C07D 233/64 (2006.01)
CPC (source: EP US)
C07C 263/04 (2013.01 - EP US); C07C 263/20 (2013.01 - US); C07C 319/20 (2013.01 - EP); C07D 209/20 (2013.01 - EP); C07D 233/64 (2013.01 - EP); C07C 2601/14 (2017.04 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3626705 A1 20200325; EP 3626705 A4 20200624; EP 3626705 B1 20210324; CN 110546135 A 20191206; CN 110546135 B 20211214; JP 6757468 B2 20200916; JP WO2018212208 A1 20191212; TW 201900605 A 20190101; US 10968168 B2 20210406; US 2020115327 A1 20200416; WO 2018212208 A1 20181122
DOCDB simple family (application)
EP 18803222 A 20180515; CN 201880027195 A 20180515; JP 2018018830 W 20180515; JP 2019518818 A 20180515; TW 107116706 A 20180515; US 201816610404 A 20180515